Alpen Kodiak 10x42 Binocular BAK4 Multicoated Dark Green Medium Roof. Available in magnifications of 8x and 10x Kodiak binoculars deliver excellent views of the details sought by birders sports enthusiasts and outdoor adventurers of all types. The binoculars in this series have a durable rubber armoring for a steady grip and are sealed and nitrogen-purged to create an internal environment that is both waterproof and fogproof for all-weather performance. They also offer above average eye relief so eyeglass wearers can enjoy a fuller field of view twist-up eyecups and a tripod thread. Specifications for Alpen Kodiak 10x42mm Roof Prism Binocular: Manufacturer: Alpen Color: Dark Green Magnification: 10 x Objective Lens Diameter: 42 mm Prism System: Roof Prism Material: BAK4 Eye Relief: 15.4 mm Exit Pupil: 4.2 mm Field of View Linear: 298 ft at 1000 yds Optical Coating: Multicoated Binoculars Focus System: Center Focus Close Focus: 14.8 ft Weather Resistance: Fog Resistant Water Resistant Mark: 1 m Water Resistance Level: Waterproof Weight: 33.6 oz Magnification Type: Fixed Package Contents: Alpen Kodiak 10x42 Binocular Bag Lens cleaning tool Alpen 829: Kodiak 10x42 Binocular BAK4 Multicoated Dark Green Medium Roof